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Table 1 Patient characteristics

From: Effect of time to first ambulation on recurrence after PELD

 Group EGroup MGroup LP
Number323028 
Age (yr ± SD)40.81 ± 11.8239.20 ± 10.9737.46 ± 10.830.518
Gender (male to female)15:1716:1415:130.837
Operation time (min)149.19 ± 25.98146.83 ± 24.67147.36 ± 25.560.929
Blood loss (ml)19.50 ± 8.0918.80 ± 8.8718.75 ± 6.330.908
Before operation lumbar pain VAS3.81 ± 1.093.63 ± 0.933.39 ± 0.870.255
Before operation leg pain VAS7.34 ± 1.127.17 ± 1.447.07 ± 1.560.738
Before operation ODI57.50 ± 7.5363.04 ± 15.5058.49 ± 14.200.202
The time until first ambulation (h)21.66 ± 1.6462.77 ± 14.26125.93 ± 30.310.000
Hospital stay(day)1.91 ± 0.863.63 ± 0.816.29 ± 1.340.000
  1. P value of the gender is calculated by chi-square test; others are calculated by variance analysis, and P value of the hospital stay is calculated by Welch test
  2. yr year, SD standard deviation